You have recently identified a molecule you believe to be a signaling molecule associated with signal transduction. All you know about this molecule is that it is hydrophilic; therefore, you expect it to interact with a receptor ____.
A) on the cell surface
B) within the cytoplasm of the cell
C) in the nucleus of the cell
D) on the cytoplasmic surface of the plasma membrane
E) associated with the endoplasmic reticulum

Question

Quizplus · Accepted Answer

Hydrophilic molecules cannot easily cross the lipid bilayer of the cell membrane, so they typically interact with receptors located on the cell surface to initiate signal transduction.

You Have Recently Identified a Molecule You Believe to Be